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Insulation structure used for collecting ring and brush gear in wind-driven generator

A technology of wind generators and brush devices, which is applied to inorganic insulators, collectors, rotating collectors, etc., can solve problems such as not being able to adapt to harsh working conditions, and achieve good insulation performance, high insulation resistance, and high strength. Effect

Inactive Publication Date: 2010-06-23
SHANGHAI MORGAN CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the insulating materials of collector rings and brush devices are basically made of phenolic pressed plastic, or laminated with epoxy glass cloth. Using this kind of material as the insulating structure material of collector rings cannot adapt to wind, rain, ice and snow in the field. The harsh working conditions of lightning, especially the corona under high voltage conditions, so it is necessary to improve the insulation structure of the collector ring

Method used

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  • Insulation structure used for collecting ring and brush gear in wind-driven generator
  • Insulation structure used for collecting ring and brush gear in wind-driven generator
  • Insulation structure used for collecting ring and brush gear in wind-driven generator

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Embodiment Construction

[0019] As shown in the figure, it is an insulation structure used for the collector ring and brush device in the wind power generator. Composed of layers; the outer diameter of the shaft sleeve, lead-out wire, and brush rod are all covered with an insulating layer.

[0020] The insulating layer is divided into inner and outer layers, which are powder mica tape layer and glass gray cloth layer respectively.

[0021] The powder mica tape layer and the glass gray cloth layer are impregnated with insulating varnish.

[0022] There is an insulating layer with a thickness of about 4mm between the conductive ring and the shaft sleeve, which is used for ground insulation: among the three conductive rings, except for the lead-out line of the outer conductive ring that directly extends out of the end of the collector ring, the other two conductive rings The lead-out wires must pass through the other ring or two rings to extend out from the end of the collector ring. Therefore, the lead...

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Abstract

The invention discloses an insulation structure used for a collecting ring and a brush gear in a wind-driven generator. The collecting ring and the brush gear mainly comprise a shaft sleeve, a conducting ring and an outgoing line thereof, a brush rod, a connection plate and insulation layers, wherein the external diameters of the shaft sleeve, the outgoing line and the brush rod are packed with the insulation layers. The insulation layers are divided into inner and outer layers which are mica powder tape layers and glass greige cloth layers respectively. The insulation structure used for the collecting ring and the brush gear in the wind-driven generator is suitable for the severe operation conditions of wind, rain, ice and snow and thunder and lightning and especially can bear the corona under the condition of high voltage.

Description

technical field [0001] The invention relates to an insulating structure, in particular to an insulating structure used for a collector ring and a brush device in a wind power generator. Background technique [0002] Wind energy is clean and renewable. Wind power generation is rapidly promoted in our country. It promotes the manufacture of wind power generators, which requires collector rings and brush devices that can adapt to severe working conditions. The core technology of collector ring and brush device is insulation. Collector rings and brush devices are the main components of wind turbines. The wind turbine is mounted on a frame about 60m high. Withstood the erosion of wind, rain, ice and snow, thunder and lightning. The working conditions are harsh. Maintenance is inconvenient. The function of the collector ring in the wind turbine is to connect the rotor (armature) circuit with the external circuit (transmission network). Its reliability is related to the saf...

Claims

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Application Information

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IPC IPC(8): H01R39/08H01R39/18H01B3/04H01B3/08
Inventor 曹建明曹新华杨海兵
Owner SHANGHAI MORGAN CARBON
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